ice-db/object.js

In-memory DB

const uuid = require('uuid');


class Object {

  /**
   *Creates an instance of Object.
   * @param {*} object object to create
   * @memberof Object
   */
  constructor(object) {
    this.id = uuid()
    // create a revision number
    let date = new Date(Date.now()).getTime()
    this.rev = `1-${date}`

    // copy props
    for (let prop in object) {
      // NOTE: this copy mechanism does not contain any checks
      // this's been made on purpose: if user have to copy id and rev, for example
      this[prop] = object[prop]
    }
  }

  /**
   *Increments revisin muber per rules
   *
   * @memberof Object
   */
  _incrementRev() {

    // revision number has two parts: an iteration and a timestamp
    let iteration = this.rev.split('-')[0];
    // increment iteration
    iteration++;
    // create new timestamp
    let timestamp = new Date(Date.now()).getTime()
    // join two parts
    this.rev = `${iteration}-${timestamp}`
  }

}

module.exports = {
  Object
}